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 Syrphus ribesii or vitripennis?
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| ChrisR |
Posted on 23-04-2008 20:10
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Saw this yesterday (22/4/2008) in southern England. Is it Syrphus vitripennis or ribesii? Is the yellow area on the femora big enough to be ribesii?
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| ChrisR |
Posted on 23-04-2008 20:11
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
lateral...
ChrisR attached the following image:  [77.5Kb] |
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| Dieter |
Posted on 23-04-2008 20:59
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Member Location: Munich, Germany Posts: 114 Joined: 15.04.07 |
The colour of the femora is of no use to distinguish ribesii males from vitripennis. The crucial characters (microtrichia on cell bm, shape of probasisternum, setae on posterior mesocoxite) are usually not visible on fotos. Cheers, Dieter |
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| ChrisR |
Posted on 23-04-2008 21:48
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
OK, no problem - thanks for the information  |
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